Archimedes, Archimedis De iis qvae vehvntvr in aqva libri dvo

Table of contents

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[61. ALEXANDRO FARNESIO CARDINALI AMPLISSIMO ET OPTIMO.]
[62. FEDERICI COMMANDINI VRBINATIS LIBER DE CENTRO GRAVITATIS SOLIDORVM. DIFFINITIONES.]
[63. PETITIONES.]
[64. THEOREMA I. PROPOSITIO I.]
[65. THEOREMA II. PROPOSITIO II.]
[66. THE OREMA III. PROPOSITIO III.]
[67. THE OREMA IIII. PROPOSITIO IIII.]
[68. ALITER.]
[69. THEOREMA V. PROPOSITIO V.]
[70. COROLLARIVM.]
[71. THEOREMA VI. PROPOSITIO VI.]
[72. THE OREMA VII. PROPOSITIO VII.]
[73. THE OREMA VIII. PROPOSITIO VIII.]
[74. THE OREMA IX. PROPOSITIO IX.]
[75. PROBLEMA I. PROPOSITIO X.]
[76. PROBLEMA II. PROPOSITIO XI.]
[77. PROBLEMA III. PROPOSITIO XII.]
[78. PROBLEMA IIII. PROPOSITIO XIII.]
[79. THEOREMA X. PROPOSITIO XIIII.]
[80. THE OREMA XI. PROPOSITIO XV.]
[81. THE OREMA XII. PROPOSITIO XVI.]
[82. THE OREMA XIII. PROPOSITIO XVII.]
[83. THEOREMA XIIII. PROPOSITIO XVIII.]
[84. THEOREMA XV. PROPOSITIO XIX.]
[85. THE OREMA XVI. PROPOSITIO XX.]
[86. THEOREMA XVII. PROPOSITIO XXI.]
[87. THE OREMA XVIII. PROPOSITIO XXII.]
[88. THEOREMA XIX. PROPOSITIO XXIII.]
[89. PROBLEMA V. PROPOSITIO XXIIII.]
[90. THEOREMA XX. PROPOSITIO XXV.]
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DE IIS QVAE VEH. IN AQVA.

LEMMA III.

V_EL_ igitur linea m n o ſccat diametrum in g, uel in alijs pun-
ctis:
& ſi quidem ſecat in g, unum at que idem punctum duabus li-
teris go notabitur.
Itaque quoniam f c, p n, h e m ſibiipſis æqui
distant:
& ipſi a c æquidiſtat m n o: fient triangula a f c, o p n,
o h m inter ſe ſimilia.
quare erit o h ad h m, ut a f ad fc: & per-
4. ſexti.mut ando o h ad a f, ut h m ad fc.
est autem quadratum h m ad
quadratum g l, ut linea h b ad lineam b g, ex uigeſima primi libri
conicorum:
& quadratum g l ad quadratum fc, ut linea g b ad
ipſam b f:
ſuntq; h b, b g, b f lineæ deinceps proportionales. er-
22. ſexti.
cor. 20. ſe
xti.
go &
quadrata h m, g l, f c, & ipſorum latera proportionalia
erunt.
atque idcirco ut quadratum h m ad quadratum g l, ita li-

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